chromium/chrome/test/data/extensions/api_test/content_scripts/duplicate_script_injection/manifest.json

{
  "name": "duplicate script injection",
  "version": "0.0.1",
  "manifest_version": 2,
  "description": "Tests that content scripts assigned to two overlapping url matches are not injected twice. Note this can be extended to N matches",
  "background": {},
  "content_scripts": [
    {
      "matches": ["*://*.google.com/*"],
      "js": ["should_run_once.js"],
      "run_at": "document_end"
    },
    {
      "matches": ["*://maps.google.com/*"],
      "js": ["should_run_once.js", "should_run_twice.js"],
      "run_at": "document_end"
    },
    {
      "matches": ["*://maps.google.com/*"],
      "js": ["should_run_twice.js"],
      "run_at": "document_idle"
    },
    {
      "matches": ["*://*.maps.google.com/*"],
      "js": ["should_run_once.js"],
      "run_at": "document_end"
    }
  ]
}